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(Model.) 2 Sheets-Sheet 1,

H. C. HAM. GRAIN DRILL.

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I-LO. HAM.

GRAIN DRILL. No. 564,424. Patented July 21, 1896.

UNITED STATES PATENT OFFICE.

HENRY C. HAM, OF LIBERTY, INDIANA, ASSIGN OR TO THE RUDE BROTHERSMANUFACTURINGCOMPANY, OF SAME PLACE.

GRAIN-DRILL.

SPECIFICATION fOrming part Of Letters Patent N 0. 564,424, dated July21, 1896.

Application filed February 29,1896. Serial No. 581,310. (Model.)

To all whom it may concern.-

Be it known that I, HENRY C. HAM, a citizen of the United States,residing at Liberty, in the county of Union and State of Indiana, haveinvented a certain new and useful Improvement in Grain-Drills, of whichthe following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forming part of this specification.

This invention relates to that class of implements in which grain isconducted from the hopper to the delivery spout or tube by means of afeed-wheel that rotates within the seed cup or box; and it relatesparticularly to those rotary droppers in which provision is made forincreasing and diminishing`the rate of feed or delivery7 without changeof speed by moving the feeding devices laterally within the cup or case,so as to expose a greater or less carrying-surface and a feedpassage ofcorresponding size.

It consists in a double feed cup or case having shaftbearings in itssides and feed-wheels provided with longitudinal rims or flanges, whichfeed-wheels slide longitudinally in their casing to increase or diminishthe feed, said feed-wheels in the same double cup differing in size andcapacity, so that the same drill, or the same series of cups, may beadjusted to feed any variety of grain in any desired quantity.

In the accompanying drawings, Figure l is a vertical section of mydouble-rim feed with their revolving casing in which both feedwheels areof the same diameter but dierent depth for different-sized grain. Fig. 2is a side elevation of the same. Fig. 3 is a vertical section of amodified form of the doublerim feed with the feed-wheels and theirrevolving casings of different diameters. Fig. 4 is a side elevation ofthe same. Fig. 5 is a perspective view of the cut-off.

A is the seed-cup at the bottom of the hopper.

B is a square shaft which revolves. Around this shaft is a sleeve C,which also revolves with the shaft. Cast integral with thesleeve C is arim or dan ged wheel D. This wheel is made solid with a peripheralbeveled flange D. The wheel D is incased in a boxing E,

preferably made skeleton form for lightness.

This casing E is jfitted directly on the shaft B and revolves with it,but does not move longitudinally with the shaft as the wheel lD does.The grain feeds into the seed-cup at the bottom of the hopper at H andfalls against the face of the seed-wheel D. The beveled flange D' isprovided with lugs, as shown at d. These lugs, together with thefriction of the face of the revolving wheel D, carry the grain to theoutlet F, where it is discharged into the tube in the usual Way. Thebeveled iange causes the grain to flow away from the face of the wheelinto the discharge and makes the discharge constant and regular.

G, Fig. 5, and shown in Fig. 2 at g, is a cut-off, cast on the sleeve K,which does not revolve, but moves longitudinally with the wheel D, thewing g always resting against the face of the wheel D and preventing thegrain from flowing out over and in front of the shaft.

7c is a lug or teat to more effectually close the opening in sowing verysmall grain.

L L is a casing inclosing the feed-Wheels, &c., and forming part of theseed-cup. To vary the feed, the wheel D is moved with the shaft to orfrom the casing E.

In Fig. l the wheel D is shown adjusted to feed the smaller quantity ofgrain. By moving it to the right toward the casing E, into the openspace P, the capacity will be increased and more grain sown. The casingE revolves, but does not move longitudinally, the shaft B slidingthrough it.

It is very important in a double-rim feed to change the feed withoutchanging the speed of the shaft, as such a change of speed of shaft isinaccurate, difficult, and involves liability of breaking the partsemployed in making the change.

For the purpose of further enlarging the capacity of the feed, so thatthe same feed may be adjusted to be used for any kind of grain from thesmallest to the largest, I provide a second cup, (only one to be used atthe same time,) which differs from the one just described in that itfaces the other way into the cup H and backs up against the same,revolving case E, and the wheel itself Df is made deeper, the beveledanges D3 extending farther from the face'of the wheel IOO and increasingthe capacity. Then it is desired to sow large grain, like oats, the sideof the cup II is closed and II open and the grain fed to the deeperwheel D2. To vary the quantity, it is adjusted longitudinally. In Fig. 3I have shown the same construction, except that the wheel D4 and itscasing are made smaller in diameter, so as to be used with very smallgrain or very small quantity. In use any convenient form of lid is usedto closethe cup or side of the cup not in use and prevent any grainflowing from the hopper into it. By means of these double-rim feedwheelswith varying size of wheels and casing I am able with one machine toadjust the feed to every possible variety or size of grain, as well asvary the quantity, without changing the speed of the feed-shaft. I haveshown, of course, only one feed, but any desired number are placed inone hopper.

The arrangement for adjusting the shaft B longitudinally is shown inFig. l. M is part of the wooden hopper, to which the end N, preferablyof metal, is rigidly secured. O is a sleeve revolving in an opening inthe end of the hopper N, and cast solid with this sleeve O is thehand-wheel R, with a shoulder o' bearing against the end of the hopper.On the end of the shaft is the adjusting handnut X, screw-threaded onthe end of the shaft. At the end of the shaft B is a spring Y, holdingthe shaft firmly against the shoulder at r, and the shaft is adjustedlongitudinally by the nut X. The spring Y holds the nut X firmly againstthe shoulder, and I prefer to place it on the shaft between the sleeve Cand the end of shaft and bearing against the end of the hopper, as shownin broken lines. It keeps a constant tension, and the shaft is adjustedlongitudinally by the hand-nut X. If it is desired to change the feed,that is, move the shaft longitudinally while the hopper is full ofgrain, the movement would crack or crush the grain. To obviate this,

the hand-wheel R is turned backward, turning the feed-Wheels back andemptying the cups, pushing the grain back into the hopper, and allowingthe feed-wheels to be moved freely to the right or left.

In operation the shaft, sleeve, and hand wheel and nut X all revolve,relieving all friction between them,and the sleeve revolves freely inthe bearings on the end of the hopper.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is*

l. In a grain-drill, two rimmed or flanged feed-wheels of differentsize, with revolving casings, said feed-Wheels capable of being movedlongitudinally for the purpose described, but the casings not movablelongn tudinally on the shaft, substantially as shown and described.

2. In a grain-drill, the combination with a feed-cup of two rimmed orflanged feed-wheels of different size, both in depth and diameter, withrevolving casin gs, substantially as shown and described.

4 3. In a graiirdrill, the shaft B, provided with the sleeve O, havingshoulder o', and hand-wheel R, said sleeve and wheel being cast in onepiece, the hand-wheel R revolving with the shaft and seed-Wheels,substantially as shown and described.

4. In a grain-drill, the shaft B, provided with the spring Y and thehand-nut and shouldered sleeve O, having its bearings in the end of thehopper, substantially as shown and described.

5. In a grain-drill, the combination with a feed-cup of two beveledflanged seed-wheels, on a revolving shaft and the hand-wheel on the sameshaft, and revolving with it, suhstantially as shown and described.

HENRY C. HAU.

Vitnesses:

J. H. DAVIS, HERBERT Dann.

